Window-frame.



0 J. LANG.

WINDOW FRAME.

APPLICATION FILED JULY 22,1907.

PATENTED MAR. 1'7, 1908.

4 SHEETS-SHEET 1.

elle

El QI! PATENTED MAR. 17, 1908.

152. No 882 J LANG WINDOW FRAME.

APPLICATION FILED JULY 22 1907 4 SHEETS- SHEET 2l ATTI JOSEPH LANG, OFMANNHEIM, GERMANY.

WIND OXV-FRAT/IE Specification oi' Letters Patent.

Patented TlIarch 17, 1908.

Application led July 22, 190'?J Serial No. 385,078.

To all whom it. may concern:

Be it known that 1, JOSEPH LANG, a citizen of the Empire of Germany,residing at Mannheim, in the Empire of Germany, have invented a new anduseful Window-Frame, of which the following is a speciiication.

My invention relates to window frames made from iron or steel sash-barsand rolled bars.

, l will now `roceed to describe my invention with re erence to theaccoinpanying` drawings, in which- Figure 1 is an elevation of afinished iron or steel window frame, Fig. 1 is an end view of the saine,Fig. 2 is a perspective view of an interna-l l'rame piece cut away andslitted in the upper web and ready for bending, Fig. 3 is an elevationot the saine after it has been bent, Fig. 4 is a similar elevation and across section through another internal frame piece which is straight andpasses through the gap of the former, Figs. 3 and 4#l are similar toFigs. 3 and 4 and show modifications, Fig. 5 is an elevation ol' an endof an internal frame piece and a cross section through an external'trame piece, the former being cut out and. ready for the insertion in ahole ol the latter, Fig. 6 is a similar view alter the union of the twoparts, Figs. 7, 9, 1t) and 11 are elevations of the four external framepieces before their composition, Fig. 3 is an elevation ol' I i'ourcomposed internal trame pieces, ot which the two long ones are cut outand bent in the manner shown at Fig. 3 and the two short pieces arestraight and have been passed through the gaps oi the former, as isshown at Fig. 4, and the ends ol' all these pieces being eut out in themanner shown at Fig. 5, Fig. 12 is a side view of the ex terna/1 framepiece shown at Fig. 11, Figs. 13 to 16 illustrate the several steps inthe procof welding the crossing points of two internal frame pieces.

Similar characters ol reference refer to similar parts throughout theseveral views.

For the manufacture of a rigid window trarne of iron or steel as shownat Figs. 1 and 1a four internal pieces 1, 1 and 2, 2 of sashiron orsteel and four external pieces 3, 3 and 4, 4 of rolled iron or steel ofthe desired seetion are cut and the ends ol! the external pieces 3, 3and 4, 4 are beveled oil', as is, shown at Figs. 7, 9, 1() and 11. Theupper web of each internal piece 1 is on two places cut away so as toiorm two gaps a d e as Jis clearly shown at Fig. 2. The cutting oflthese gaps may be effected in any known manner, be it by means of a dieand a stamp in a press or otherwise. Afterwards two slits b c and d fare made on both sides of each gap, the said slits being produced in anyknown manner, for example by means of a thin and 'tlat chisel, or acircular metal saw or a band metal saw or the like. The up er web of theinternal piece 1 is thus divi ed from the lower triangular part by thetwo slits b c and d f. Thereupon the piece l is heated and so bent bypressing in any known manner as to form two gaps g shown in F ig. 3,through which the two pieces 2, 2 can pass, as is shown at Fig. 4. Itdepends upon the section ol the sash-bars what shape the gap g is to begiven. A modification of the gap g is for example shown at Fig. 3a. Itwill be understood, that the length of the gap in the piece 1 beforebending, in other words the distance between the two end faces a. b ande d in Fig. 2, requires to have such a size as to leave after bending adistance between them like the thickness of the upper web of the piece 2(see Fig. 4) or nearly so. The ends of all the internal pieces 1, 1 and2, 2 are then cut out to 'lit the cross section oi the external pieces3, 3 and 4, 4 respectively as is clearly shown,

at Fig. 5, a projection 7L being left which is to pass through arectangular hole i in the piece 3 or 4. The cutting of the ends of thepleces .1, l and 2, 2 may be eil'ected in any knowny manner, for exampleby means or a planing machine, the emery disk of a grinding Inachine,dies and stamps in a press or the like. The two holes i i in eachexternal piece 3 or 4 may be cut in any known manner, for example bymeans o1 dies and stamps in a press.

The two internal pieces 2, 2 are passed through the gaps g of the twoother internal pieces 1, 1 and the latter are adjusted on the former, sothat the two short external pieces 4, 4 can be put over the projectionsh 7L oi the pieces 1, 1. The projections k L of the pieces 2, 2 areinserted in the holes i i of the two long external pieces 3, 3, so thatthe beveledolil ends oi' all the four external pieces 3, 4, 3, il toucheach other' and the whole frame looks like Fig. 1. Thereupon thebeveled-oill ends oi the external pieces 3,- 4, 3, 4 in Contact witheach other are welded, preferably by means ol an oxyhydrogen-blowpipe.In this manner or in any other known and approved manner the fourexternal pieces 3,3 and 4, 4 are turned into a rigid rectangular frame,in which the four internal pieces l, 1

ico

and 2 are we ded in their upper parts.

and 2, 2 are secured. The ends ZL ZL of these internal pieces, whichproject from the external pieces 3, 3 and 4, 4, are then riveted, as isshown in Fig. 6. VZhere so preferred, the rivetedgends Zt Zt may also beWelded on the external pieces by means of the oxyhydrogen-blowpipe .5Without using the wire Fig. 1a shows the welded ends h ZL. The next stepis to weld the crossing points of the internal pieces 1, 1 and 2, 2.According to my invention this welding is effected in the followingmanner: The oxyhydrogen blowpipe 5 is so applied as to direct the jet ofoxyhydrogen to the point Where Vthe upper web of the piece 2 crossesthat of the piece 1, see Fig. 13, so that the flame will melt the metalin the manner clearly shown at Fig. 14. Thereby a gap Z will be formedin the upper Webs of the crossing .pieces 1 and 2 and layers Zc Zc ofmolten metal of a varying shape Aand extension will be produced on thevertical sides of the upper webs as is illustrated in Fig. 14. Therebyone orboth joints between the up er Webs of the crossing pieces l Forlling up the gap Z pieces of weldable metal (such as soft wrought-ironor the like) and of convenient shape are placed in the gap as is forexample shown at Fig. 15, where the ieces are denoted by 7 and 8, 8.lThe oxy- Eydrogen-blow-pipe 5 is again a melting these pieces 7 and 8,8 an ior welding them on the upper Webs of the crossing ieces 1 and 2 asis for example shown at Fig. 16. Thereby the upper parts of the endlfaces a Z) and e d of the upper web of the piece 1 (see Fig. 3) arerigidly connected with the upper web of the crossing piece 2, so thatthe so iinished window frame shown at Fig. 1 be ca able of withstandingforces to which it is su jected.

The pieces 7 and 8, 8 shown at Fig. 15 may have any other sha e; theymay be short pieces of Wire or the ike. i of weldable metal may beemployed for filling u the gap Z. The essential point is, thattie pieceis or the pieces are placed or inserted in the gap Z and subjected tothe jet of oxyhydrogen. In Fig. 16 the weld is plied for i Also a singlepiece shown as somewhat irregular in order to better illustrate themethod. A skilled operator may be able to produce in this manner a niceand regular weld.l This method of welding the said crossing pointspresents the advantage, that the welding can e effected rapidly and in asimple manner.

Where so preferred, of course the whole joint between the crossingpieces 1 and 2, that is to say the joint running from the point a inFig. 4 downwards round the piece 2 and upwards to the joint e may becompletely welded, and in themanner that the upper parts of the jointare welded as just described above and the lower parts are weldedsimilarly.

The method may be varied without departing from the spirit of myinvention.' It is o tional in what order the several operationsdescribed should be conducted. For bending each cut out internal piece 1may be heated wholly or partly or only on the places where the gaps gare to be formed. The projecting ends ZL ZL shown in Figs. 1a and 6 maybe so treated with the jet of oxyhydrogen as to make them flush' withthe vertical outside of the pieces 3 or 4. The internal frame pieces 1,2 may have any other cross section and also the external frame pieces 3,4.*

T claim:

A metal window frame comprising four external pieces having their endsbeveled ofi' and welded together, said external pieces having holestherein for the reception of the ends of the internal pieces, a numberof inn ternal pieces disposed in one direction, and having openingstherein of a shape corresponding to the cross sectional shape of theinternal pieces, and other internal pieces extending at right angles tothe first nientioned internal pieces, andpassing through said openings,the ends of all of said internal pieces being welded into openings inthe external pieces.l

JOSEPH LANG.

Witnesses: j

ORMrNPB lWALTER Jos. H. LEUTE.

